Upgrading to a high-energy-efficient furnace is a great way to improve your home’s heating system and lower your energy bills. With two main types of furnaces available electric and gas it’s important to understand the key differences between the two to determine which is the best choice for your home. Here’s a guide to help you evaluate your options and make an informed decision when shopping for a new furnace.
Energy Efficiency Ratings
When shopping for a high-efficiency furnace, the first thing to look at is the Annual Fuel Utilization Efficiency (AFUE) rating. The higher the AFUE, the more efficient the furnace is at converting fuel into heat.
Gas furnaces
Modern gas furnaces typically have AFUE ratings ranging from 80% to 98%. A higher AFUE means that more of the energy from the gas is being converted into heat, with less wasted. High-efficiency gas furnaces (usually those with an AFUE of 90% or higher) can significantly reduce your energy bills.
Electric furnaces
Electric furnaces can have an AFUE rating of 100%, which means they convert all the electricity used into heat. However, while electric furnaces are efficient in terms of energy conversion, their operating costs can be higher because electricity is often more expensive than natural gas.
The choice between electric and gas will depend on your priorities: Gas furnaces tend to be more affordable to run, while electric furnaces are often considered more efficient when it comes to energy conversion.
Fuel Type and Availability
The type of fuel your furnace uses will play a significant role in your decision.
Gas furnaces
These are often the preferred choice for homeowners who have access to natural gas, which is generally less expensive than electricity. A gas furnace uses natural gas or propane, which is burned to produce heat. If you already have gas lines running to your home, this could be the most cost-effective option.
Electric furnaces
Electric furnaces are ideal for homes that don’t have access to natural gas. They work by converting electricity into heat using electric heating elements. While they are more energy-efficient in terms of converting electricity into heat, electricity can be more expensive than natural gas, which could lead to higher ongoing costs.
When deciding between electric and gas, consider the availability of natural gas in your area, as well as the cost of electricity versus natural gas. If you live in a region where electricity prices are high, a gas furnace may be a more economical option in the long run.
Upfront Cost vs. Operating Cost
The initial cost of purchasing a furnace can vary depending on the type and brand, but there are also differences in their operating costs.
Gas furnaces
Typically, gas furnaces come with a higher upfront cost than electric models, particularly when installing gas lines and venting systems. However, because natural gas is often cheaper than electricity, gas furnaces tend to have lower ongoing operating costs, especially in colder climates.
Electric furnaces
While electric furnaces are usually less expensive to purchase and install, they can be more costly to operate over time due to higher electricity prices. However, if your home is smaller or you live in a region with mild winters, an electric furnace might still be an affordable and efficient choice.
Tax Credits and Incentives
One of the benefits of purchasing a high-efficiency furnace is the potential for tax credits and rebates that can help offset the initial cost.
Don’t forget to check for available tax credits or local incentives that can help lower the upfront cost of your new furnace.
Maintenance and Lifespan
Both gas and electric furnaces require regular maintenance to ensure they are running efficiently, but the level of maintenance needed can vary.
Gas furnaces
Gas furnaces typically require more maintenance than electric units due to their complex components, such as burners, heat exchangers, and venting systems. However, with proper care, gas furnaces can last 15-20 years or more. Regular maintenance, such as cleaning the burner, checking for leaks, and inspecting the heat exchanger, is necessary to keep the furnace operating safely and efficiently.
Electric furnaces
Electric furnaces are generally easier to maintain because they have fewer moving parts and don’t require a venting system like gas furnaces. The lack of combustion means there’s less risk of dangerous malfunctions. An electric furnace typically lasts 20-30 years, making it a long-term investment with less need for regular servicing.
Climate Considerations
Your local climate plays a significant role in choosing between an electric or gas furnace. If you live in a colder region with long winters, a gas furnace may be a better choice due to its lower operating costs and ability to handle the heavy heating demand. On the other hand, if you live in a milder climate, an electric furnace could provide enough warmth without the added cost of installing gas lines or dealing with more complex maintenance.
Conclusion
When shopping for a high-energy-efficient furnace, it’s crucial to consider factors like energy efficiency ratings, fuel type, upfront costs, operating costs, and available tax credits and rebates. Gas furnaces are often a more economical choice for homeowners with access to natural gas, thanks to lower operating costs, while electric furnaces are ideal for those without gas access or in areas with mild winters.
